1.The study of low frequency fluctuation in the resting state between short-term heroin and methamphetamine abusers after withdrawal
Yang YU ; Mingwu LOU ; Lin LU ; Wenbin LIANG ; Yunxia SHEN
Journal of Practical Radiology 2015;(6):887-890
Objective To investigate the differences of low frequency fluctuation (ALFF)in the resting state between short-term heroin and methamphetamine abusers after withdrawal.Methods Sixteen male short-term heroin abusers and fourteen male short-term methamphetamine abusers were performed the functional magnetic resonance imaging (fMRI).The differences of ALFF be-tween the two groups were performed with preprocessing softwares.Threshold was set to 0.05.Results Compared with metham-phetamine-dependent patients,heroin-dependent patients showed increased ALFF in the left side of the lingual gyrus and the left ton-sil of cerebellum and decreased ALFF in the left side of the brain stem,midbrain and the left side of the cerebellar vermis.Conclusion There are differences between the short-term heroin and methamphetamine abusers in the function of the brain,mainly involving the brain regions associating with cognition and affection.
2.Comparison and Analysis of Three Methods in Testing Low Concentration HBsAg Samples
Ming CHEN ; Qun SHEN ; Yu LIU ; Richu LIANG
Journal of Modern Laboratory Medicine 2014;(6):107-109,112
Objective To make a preliminary study on the results from qualitative and quantitative detection of low concentra-tion hepatitis B surface antigen(HBsAg).Methods 85 HBsAg low concentration serum samples (ELISA method test re-sults were 0.60.05)and 0.60.05).The positive detection rate showed statistically difference between ELISA (70.6%)and CMIA,TRFIA in 0.6TRFIA>ELISA.②The contents of HBsAg showed statistically difference among 0.6TRFIA>ELISA.③There was a positive correlation between the three methods of HBsAg content (t=2.939,2.928,60.915,P<0.05).The correlation between CMIA method and TRFIA method was the best (r=0.989).Con-clusion CMIA was the first choice for testing low concentration HBsAg,TRFIA was the second.For the specimens of the low concentration HBsAg detected by ELISA should be suggested to clinical and retested by CMIA or TRFIA in order to a-void missing detection.And it was not recommended to clinical that different methods of quantitative or half-quantitative re-sults were transverse compared in order to avoid misdiagnosis.
3.Effect of empathy nursing on anxiety, depression and expectation of patients with myocardial infarction
Fei SHEN ; Liang XU ; Fang YANG ; Yu HUA
Modern Clinical Nursing 2016;15(12):45-49
Objective To explore the effect of empathy nursing on anxiety,depression and expectation of patients with myocardial infarction.Methods In our study,47 patients with myocardial infarction in the department of cardiology of our hospital from August 2013 to July 2014 were assigned as the control group and another 47 patients with the same disease during August 2014 to July 2015 as the study group.The control group received conventional nursing treatment and the study empathy nursing in addition to the conventional nursing.The two groups were compared in terms of anxiety,depression and expectation using Zung anxiety self rating scale (SAS),depression self rating scale (SDS) and Herth hope index (HHI).Results On admission,the patients in the two groups showed no differences in the levels of anxiety,depression and expectation (P>0.05).After intervention,the levels of anxiety and depression in the study were significantly lower than those in the control group,but the level of expectation was higher (all P<0.05).Conclusion Empathy nursing is effective for the relief of anxiety and depression in the patients with myocardial infarction as well as for their enhanced expectation for prognosis.
4.The research on CDK4 andβ-Catenin expression and clinic significance in glioma
Tianhua DONG ; Xin SHEN ; Yanan LIANG ; Yu LIU ; Dandan TONG
Practical Oncology Journal 2015;29(5):404-408
Objective To study the expression of CDK4 andβ-Catenin and their relevance in glioma. Methods We used immunohistochemistry to detect the expression of CDK4 andβ-Catenin in forty-five glio-ma tissues and eight normal tissues.According to the classification standard of WHO in 2000 classify and grade the tissues.Results There were significant differences of CDK4 andβ-Catenin expressions between normal tis-sues and glioma tissues(P<0.01).The expression of CDK4 and β-Catenin had positive correlation with the pathological grades of glioma and histological type and increased(P <0.05).Furthermore,the expression of CDK4 was positively correlated with the expression ofβ-Catenin in glioma(r=0.52,P<0.01).Conclusion The increased expression of CDK4 andβ-Catenin may have correlation with malignant change of glioma and oc-curance of glioblastoma,and their combination is expected to become an important indicator in assessing malignant glioma.
5.The carbapenem-resistance mechanism and homology analysis of four strains of Klebsiella pneumoniae isolated from different sites of one patient
Ying LIU ; Jing YU ; Liang ZHANG ; Lisong SHEN
Chinese Journal of Infection and Chemotherapy 2013;(6):460-464
Objective To study the drug resistance mechanism and homologous relationship of four clinical strains of carbapen-em-resistant Klebsiella pneumoniae isolated from different sites of the same one patient.Methods Four carbapenem-resistant K .pneumoniae strains were isolated from blood,urine,sputum and pelvic drainage of a patient after cystectomy in clinical mi-crobiology lab of Xinhua Hospital in March 2012.① Modified Hodge test was used to detect the expression of carbapenemase.② PCR amplification assay and DNA sequencing were used to detect resistance-related genes.③ SDS-PAGE analysis was per-formed to analyze outer membrane porin components of the four carbapenem-resistant K .pneumoniae isolates.ERIC-PCR as-say was used to analyze the homology of these carbapenem-resistant isolates.Results Modified Hodge test demonstrated that all the four carbapenem-resistant K.pneumoniae expressed carbapenemase.KPC-2 gene was identified in all the four isolates by PCR test and DNA sequencing.SDS-PAGE analysis indicated an outer membrane porin alteration common to all the four iso-lates which is distinct from that of the strain sensitive to antibiotics.The identical DNA fingerprinting of the four strains was confirmed by ERIC-PCR analysis.Conclusions The antibiotic resistance mechanism of the four carbapenem resistant K.pneu-moniae associated with this case includes the expression of KPC-2 and altered outer membrane permeability induced by abnormal expression of outer membrane porin.These four strains belong to one common clonal group.
6.MicroRNA-215 is a potential prognostic marker for cervical cancer.
Hua, LIANG ; Yan, LI ; Ruo-yu, LUO ; Fu-jin, SHEN
Journal of Huazhong University of Science and Technology (Medical Sciences) 2014;34(2):207-12
Recently, microRNAs (miRNAs) have been shown to be involved in multiple biological pathways that can influence tumor progression and metastasis and they can serve as prognostic biomarkers in many cancers. The present study examined the prognostic significance of miR-215 in cervical cancer. The paraffin-embedded paired cervical scrape samples and tumor tissue samples from 302 patients with stage II cervical cancer were detected for the expression of miR-215 by using qRT-PCR. A miR-215-based classifier was established by using the Cox regression model. The prognostic and predictive accuracy of this classifier was determined in both the internal testing group of 138 patients, and the external independent group of 280 patients. Moreover, cervical cancer HeLa cells overexpressing miR-215 (HeLa-miR-215) were constructed and subcutaneously injected into the nude mice to examine the effect of miR-215 on tumor growth and metastasis in vivo. The results showed that the expression level of miR-215 was significantly higher in cervical cancer tissues than in paired normal tissues (P<0.0001). When patients were classified into high- and low-risk cancer progression groups according to miR-215 level, the 5-year disease-free survival in high- and low-risk groups were 43% (95% CI: 32.1-51.6) and 67% (95% CI: 48.6-77.3) (hazard ratio [HR] 2.02, 95% CI: 1.16-3.52; P=0.013) respectively. Moreover, the expression level of miR-215 was negatively associated with survival rate in patients at TNM stage T3 (HR: 3.317; 95% CI: 1.18-5.14, P=0.017) and TNM stage T4 (HR: 3.48; 95% CI: 1.49-4.45, P=0.008). Tumor volume in nude mice injected with HeLa-miR-215 cells was significantly larger than that in mice injected with control HeLa cells. It was concluded that the expression level of miR-215 is associated with cervical tumor progression and worse survival rate, suggesting that it may serve as a potential prognostic marker to identify patients at higher risk of recurrence.
7.Establishment and Management of Multicentral Collection Bio-sample Banks of Malignant Tumors from Digestive System.
Si SHEN ; Junwei SHEN ; Liang ZHU ; Chaoqun WU ; Dongliang LI ; Hongyu YU ; Yuanyuan QIU ; Yi ZHOU
Chinese Journal of Medical Instrumentation 2015;39(6):410-414
To establish and manage of multicentral collection bio-sample banks of malignant tumors from digestive system, the paper designed a multicentral management system, established the standard operation procedures (SOPs) and leaded ten hospitals nationwide to collect tumor samples. The biobank has been established for half a year, and has collected 695 samples from patients with digestive system malignant tumor. The clinical data is full and complete, labeled in a unified way and classified to be managed. The clinical and molecular biology researches were based on the biobank, and obtained achievements. The biobank provides a research platform for malignant tumor of digestive system from different regions and of different types.
Biological Specimen Banks
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organization & administration
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Digestive System
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pathology
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Humans
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Neoplasms
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Specimen Handling
8.The changes of monocarboxylate transporter-2 in spinal cord horn in a rat model of chronic inflammatory pain.
Jian-hua HE ; Li XU ; Yu SHEN ; Ming-jian KONG ; Lin-yu SHI ; Zheng-liang MA
Chinese Journal of Applied Physiology 2015;31(1):19-22
OBJECTIVETo investigate the changes in the levels of monocarboxylate transporter-2 in spinal cord horn in a rat model of chronic inflammatory pain.
METHODSMale SD rats weighting 180 - 220 g were randomly divided into two groups(n = 48): normal saline group (NS group), complete Freund's adjuvant group (CFA group). Rats were given injections of CFA 100 µl in left hind paw in group CFA, and an equal volume of saline was given injection in group NS. Mechanical withdraw threshold(MWT) and thermal withdraw latency(TWL) were measured at before injection(T0 and 3 h, 1 d, 3 d, 7 d, 14 d, and 21 d after injection(T1-7). Four rats were chosen from each group at T0-7 and sacrificed, and L4-5 segments of the spinal cord horn were removed for measurement of the expression of monocarboxylate transporter-2 by Western blot analysis.
RESULTSIn CFA group, mechanical hyperalgesia and allodynia appeared on the 3 h after CFA injection, then until the day 14. The expression of monocarboxylate transporter-2 in the spinal dorsal horn of rats in CFA group was significantly higher than that in normal control group at T1-6(P <0.05). The protein level of monocarboxylate transporter-2 was apparently correlated with MWT and TWL(P <0.01 and P <0.05) in CFA group.
CONCLUSIONThe level of monocarboxylate transporter-2 in spinal dorsal horn is significantly increased in a rat model of chronic inflammatory pain and the change may involve in the formation and maintenance of central sensitization in spinal cord of chronic inflammatory uain.
Animals ; Disease Models, Animal ; Freund's Adjuvant ; Hyperalgesia ; chemically induced ; Inflammation ; chemically induced ; metabolism ; Male ; Monocarboxylic Acid Transporters ; metabolism ; Pain ; chemically induced ; metabolism ; Rats ; Rats, Sprague-Dawley ; Spinal Cord ; metabolism ; physiopathology
9.Ultrasmall superparamagnetic iron oxide-enhanced MRI in a rabbit model of antigen-induced arthritis:a preliminary study
Wan-Yin SHI ; Yong-Qiang YU ; Yu-Xian SHEN ; Chang-Liang YU ; Cheng ZHANG ; Jin-Min WU ;
Chinese Journal of Radiology 1999;0(10):-
Objective To investigate the feasibility of ultrasmall superparamagnetic iron oxide- enhanced(USPIO)-enhanced MR imaging for monitoring synovitis of antigen-induced arthritis in rabbit model and explore the optimal MR imaging sequences.Methods Nine female white rabbits with antigen(0.5 ml mBSA,2 mg/ml)induced arthritis of the right knees were used in the study.The left knees of these rabbits and both knees of another 3 rabbits served as the control.Nine to 28 days(mean 21.3 d)after successful model induction,all knees were imaged before and 24 h after intravenously injection of USPIO (0.3 ml/kg),among which 2 rabbits were also imaged at 48 and 72 h after administration of USPIO respectively.The MR protocol included spin-echo(SE) T_1WI,fast spin-echo(FSE)T_2WI,gradient echo (GRE)T_2~* WI and short tau inversion recovery(STIR).Images were analyzed quantitatively and qualitatively based on signal characteristics and patterns of the synovium.Paired t-test was used for the analysis of the signal intensity of inflammatory synovial membrane before and 24 h after injection of USPIO. MR findings were correlated with histopathology.Results Arthritis was successfully induced in all 9 right knees with intraarticular injection of mBSA.Pathological examination revealed hyperplasia of synovium with infiltration of USPIO-loaded-macrophages.MR depicted synovial thickening(thickness 2.07?0.97 mm) and joint effusion.Synovium and joint fluid appeared as slightly hypo- or iso-intense on T_1 WI and hyper- intense on T_2 WI or T_2~* WI.Twenty four hours after USPIO injection,significant T_1 enhancement(ASNR 41.91%?27.94%),negative T_2 and T_2~* enhancement(△SNR -34.92%?11.77% and -57.24%? 16.05%)were demonstrated in the region of synovial inflammation respectively.The signal at 48 h and 72 h changed less than that at hour 24.No signs of arthritis occurred in all left knees and in all knees of the artificial model group.Conclusion Iron oxide phagocytized into macrophages can be a root cause resulted in signal change on USPIO-enhanced MR images.The gradient echo sequence should be the optimal sequence to be used in USPIO-enhanced MR imaging in antigen-induced arthritis.
10.Intra-arterial thrombolytic therapy for hepatic artery thrombosis after liver transplantation
Naiying SHEN ; Chang LIU ; Xiang QI ; Xiaogang ZHANG ; Bo WANG ; Xuemin LIU ; Liang YU ; Yi Lü
Journal of Xi'an Jiaotong University(Medical Sciences) 2009;30(6):677-679
Objective To explore the clinical value of intra-arterial thrombolytic therapy for hepatic artery thrombosis after liver transplantation. Methods Routine color doppler imaging (CDI) was used to detect hepatic artery thrombosis (HAT) after liver transplantation in 160 cases. Suspected patients were further confirmed by immediate angiography. Four cases of HAT were diagnosed and treated by intra-arterial thrombolysis. Two cases received repeatable transcatheter hepatic arterial thrombolysis with a low dose of urokinase. Results Hepatic artery recanalization was achieved in 3 cases. Among the 3 cases, multiple HAT occurred in 1 case, intra-arterial thrombolysis was successfully completed in the end. Two cases had intra-abdominal hemorrhage, which was cured by conservative treatment. One case received retransplantation because of interventional thrombolysis failure and intra-abdominal hemorrhage. Conclusion Intra-arterial thrombolytic therapy may be a promising method in the treatment of HAT. Transcatheter hepatic arterial thrombolysis shows a significant result.